Astin
In Persian, the name of this rebellious queen is VashTi, but the Greek pronunciation is Astin (see the Wikipedia reference, ‘Vashti’). Although some sources claim that she was the daughter of the defeated Babylonian King BelShazzar, the 140 years or more since his death makes that relationship unlikely. However, she could have been a descendant (a granddaughter) of BelShazzar.